Quick definitions from WordNet (alarm)▸ noun:a device that signals the occurrence of some undesirable event▸ noun:an automatic signal (usually a sound) warning of danger▸ noun:fear resulting from the awareness of danger▸ noun:a clock that wakes sleeper at preset time▸ verb:warn or arouse to a sense of danger or call to a state of preparedness ("The empty house alarmed him")▸ verb:fill with apprehension or alarm; cause to be unpleasantly surprised
▸ Also see alarm